lauren miller what you have is a water damaged device. Time to treat it like that.
The myth of rice as a tool for any kind of immersion accident has long been laid to rest as totally bogus. Rice does not work. It is the equivalent of doing absolutely nothing. It does absolutely nothing to help you with this repair. All it does is waste time and waste food. Check here https://www.ifixit.com/News/30047/rice-i... for more on this.
For now you want to stop continuing to try to charge, sync or otherwise use your phone. This potentially can make a bad situation worse since it may further damage your phone.
The next thing to do is to clean it. Disassemble your phone using these guide iPhone 11 Repair . You do not wait for evaporation of the water to happen on a closed phone. All that does is that it increases the chance and rate of corrosion to set in. At least open it up. You must remove all EMI shields. If you do not remove those, you might as well not do anything. After you remove those, clean the whole board, connectors and all, with +96% isopropyl alcohol. Isopropyl alcohol in the higher concentration will evaporate quickly and there will be no reason for waiting. Follow this guide , and even so it was written for an Apple iPhone 3G, all the points are still pertinent to your phone. If you have to use water to remove any gross contamination, use sterile water and not drinking water. The importance here is the cleaning. While you clean your board, check for any obvious damage, like burned or missing components etc. All these steps are to avoid delayed failure caused by corrosion. Best thing to do would be to clean it with an ultrasonic cleaner, but if you do not have access to one, this will at least help. Once all this is done, change your battery and reassemble your phone and reevaluate. Until it is cleaned, everything will only be a guess. Even with all this, water damage has only a small chance to be fully repaired, but at least you can give it a try.